This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X680S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU50X680S
The AirTAC SU32~50 Standard Cylinder SU50X680S is a double-acting profile-type standard cylinder with a Ø50mm bore and 680mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X680S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke680 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X680S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU50X680S
The AirTAC SU50X680S is a discontinued double-acting profile cylinder with a 50mm bore and 680mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X680S, a direct upgrade retaining the exact body, stroke, force, and SC-series mounting.
The SAU upgrade switches the magnet sensor family from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in 4M valve option. Note that a plain cylinder drifts on air loss; the cushions only decelerate.
Airtac SU32~50 Standard Cylinder SU50X680S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X680S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X680S |
| Bore size | Ø50 mm |
| Stroke | 680 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X680S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X680S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU50X680S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×680 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU32~50 Standard Cylinder SU50X680S Is Used
Long-Reach Diversion
Pushes packages across a 680mm lane span on a sorting line, utilizing the 982N push force to reliably deflect heavy cartons without bounce.
Vertical Material Lift
Raises a 50kg tote between elevator tiers using the calculated safe vertical lift capacity, relying on external guides to stabilize the long rod.
Indexing Station Transfer
Shifts a machining pallet 680mm between cells, taking advantage of the compact profile body to save floor space compared to standard ISO cylinders.
Replacing the Airtac SU32~50 Standard Cylinder SU50X680S with the SAU50X680S
To replace this SU50X680S with the SAU50X680S, confirm the 50mm bore, 680mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because this is an -S magnet model, you must upgrade your sensors: the legacy CS1-B/DS1-B switches will not fit the SAU, so order CMSG/DMSG/EMSG equivalents. If sizing alternatives, the neighbouring 63mm bore boosts push force to 1559N at 0.5MPa, while dropping to 40mm reduces it to 628N. For the 680mm stroke, use an external guide to prevent rod bending and side-load damage. A plain cylinder does not hold load without live air; for vertical holding, add an external rod lock or pilot-operated check valve. Consider the SAUF variant if you need a built-in valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X680S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU50X680S FAQ
Yes, the SU50X680S is discontinued. The direct replacement is the AirTAC SAU50X680S. It matches the 50mm bore, 680mm stroke, 982N force, 1/4" port, and SC-series mounting. You simply order the SAU equivalent.
The 50mm bore provides 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. Because your SU has an -S magnet, note the SAU replacement uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X680S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X680S replacement — usually within 7-8 hours.